Gas-producer.



No. 658,683. Patented Sept. 25, I900.

e. w. SHEM- v GAS PRODUCER.

(Appl ication filed June 12, 1900.) (No Model.) 2 Sheets-Sheet /0 g /0 u o 00 00 o o oo 0 o 0 0 \wQSooo-oo 0 00000600 7 W 00000 000000 00 m 00000 O mouooo 00000 00000 00 0000 moooooooooooo 00000000000000 No. 658,683. Patented sent. 25, I900.

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GAS PRODUCER. (Application filed June 12, 1900.

2 Sheets-Sheet 2.

(No Model.)

m: mums PzYEns cow. vnmou uoq wusnmumn, 04 a iliNirnn STATES PATENT OFFic GEORGE \V. SHEM, OF CAMDEN, NEW JERSEY, ASSIGNOR TO THE CAMDEN IRON WORKS, OF SAME PLACE.

GAS-PRODUCER.

SPECIFICATION forming part of Letters Patent No. 658,683, dated September 25, 1900.

Application filed June 12, 1900- $erial No- Z0,066. (N modelh To all whom, it may concern.-

Be it known that I, GEORGE W. SHEM, a citizen of the United States, and a resident of Camden, Camden county, New Jersey, have in vented certain Improvements in (alas-Pro ducers, of which the following is a specification.

The object of my invention is to so construct the ash-hopper of a gas-producer as to [0 provide for the introduction of air to all parts of the mass of fuel contained in the producer by a system of distribution which shall be uniform and without violent or disruptive action in any part of said mass, an object which I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in which Figure 1 is a vertical sectional view, taken on the line a a, Fig. 2, of the lower portion of a gas-producer constructed in accordance with my invention. Fig. 2 is an inverted plan or bottom view of the same. Fig. 3 isa sectional plan View of one of the boshes or sections of the hopper, and Figs. 4 and 5 are sectional views illustrating modifications of my invention.

In Fig. 1 portions of the walls of the producer are represented at 1, these walls being mounted upon posts or columns 2, built upon a suitable foundation and projecting upwardly from a sealing-pit 3, containing water, in which the lower portion of the inwardlytapering ash-hopper4 of the producer is submerged, whereby said producer is watersealed and the escape of gas from the ashhopper is prevented without interfering with the free discharge of the ashes therefrom, said ashes being removed from the sealingpit by drawing them up the sloping sides of the same.

Water-sealed gas-producers are not new, and my present invention resides in a particular construction of the ash-hopper,whereby it serves as a means of introducing into the producer air for the purpose of supporting combustion therein.

The hopper consists of a series of hollow segments or boshes 5, each of said boshes consisting of an inner and an outer wall connected at the top to a ring 6, whereby the boshes are supported upon the producer chambers 7 of the boshes.

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structure, each bosh inclosing a chamber 7, which is open at the bottom and either open or closed at the ends, as desired. The inner wall of each of the boshes is provided with numerous perforations, and the chambers 7 of the boshes are supplied with air from a belly-pipe 8, extending part way around the lower portion of the producer and having a series of branches 9, communicating with the When these chambers are intended to communicate with each other, the end webs of the boshes are perforated, as shown in Fig. 3, so as to produce what is practically a single chamber extending all of the way around the hopper, and in this case any desired number of branch pipes 9 may be employed for introducing air into the boshes, said branch pipes 9 being by preference disposed tangentially, as shown in Fig. 2, so as to cause the air to circulate in the chambers 7, and thereby reach all portions of the mass within the hopper 5 through the perforations in the inner walls of the boshes. Air may also be introduced into the central portion of the mass of fuel through a pipe 15, cent-rally disposed in the hopper and having a conical dome 16 and hollow lateral branch pipes 17, whereby it is supported upon the opposite hollow segments or boshes 5 and is in communication with the chambers 7 of the same, so as to receive its supply of air therefrom. By this means the air is supplied to the fuel in a multitude of jets distributed uniformly throughout the mass, so that all portions of the latter are reached by the airsupply, the multitude of jets so reducing the force of each that it exercises no violent or disruptive action upon the fuel, the air to support combustion being thereby supplied 0 uniformly throughout the mass and in such volume and with such a limited degree of force that combustion can be carried on in the manner best calculated to produce a maximum volume of gas without carrying 01f par- 5 ticles of free carbon in such quantity as to choke the gas-conveying pipes or flues with The pressure of air cannot exceed a maximum represented by the height of the water in the sealing-pit above the level of the bottom of the hopper, as the air in case of such excess of pressure would displace the water within the air-chamber of the hopper and escape from the bottom of the hopper.

Each of the hollow boshes may be provided with suitably-disposed pokeholes 10, which are cut off from comm unicatiou with the air chamber. or in place of poke-holes or in addition thereto I may form in each of the hollow boshes a large opening 11, likewise having no communication with the air-chamber, said opening being provided with an external door or cover-plate, as shown in Figs. 4 and 5. The latter figure also shows each of the hollow boshes as closed at the ends, so that the chambers within the boshe's are independent of each other, each bosh in this case being provided with an ail-supplying branch 9 from the belly-pipe.

Any ashes which may find their way into the chambers 7 of the boshes through the openings in the inner walls of the same will be discharged from the open bottoms of said chambers into the sealing-pit. Hence there is always provided free access of air to the openings in the inner walls of the boshes, through which it passes into the mass of fuel in the producer.

The central air-supply pipe 15 may be omitted, if desired; but its use is preferred.

Having thus described my invention, I claim and desire to secure by Letters Patent- 1. A gas-producer having an ash-hopper with double walls and intervening air-chamber, the inner wall being perforated, and a sealing-pit into which the ash-hopper and the chamber between its double walls discharge, in combination with means for supplying air to the chamber between the walls of the hopper, substantially as specified.

2. A gas-producer having an ash-hopper with double walls, and intervening air-chamber, the inner wall being perforated and the hopper having openings through it which are out 01f from communication with the airchamber, but permit access from outside of the hopper to the mass within the same, and a sealing-pit into which said hopper projects, substantially as specified.

3. A gas-producer having an ash-hopper with double walls and intervening air-chamber open at the bottom, the inner wall being perforated,'a central air-distributer having hollow branches providing communication between said central distributer and the airchamber of the hopper, and a sealing-pit into which the lower portion of the hopper projects, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE W. SHEM.

Witnesses:

WM. J. HAMLIN, R0131". R. LONGLAND. 

